Patent US5713419A successfully refreshed from Google Patents.
US5713419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intelligent attachment to a power tool
Assignee: Doosan Bobcat North America Inc
•
Filing: 1996-05-30
•
Granted: 1998-02-03
•
Expires: 2016-05-30
Abstract
Abstract A power attachment is attachable to a power machine which has a power circuit. The power machine also includes an operator input device receiving an operator input and providing an output signal indicative of the operator input. The attachment includes a tool and an actuator, coupled to the tool, to drive the tool. The actuator is also connectable to the power circuit of the power machine. A controller is operably coupled to the actuator and is operably coupleable to the operator input device. The controller controls operation of the tool based on an operator input signal provided by the operator input device.
Inventors
- 👤 Wally L. Kaczmarski
- 👤 Scott B. Jacobson
- 👤 Verne C. Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:18
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/20; E02F9/2025; E02F3/00; E02F3/04; E02F3/96; E02F3/961; E02F9/22; E02F9/2264; E02F9/2267; E02F9/26
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
114 words
An attachment attachable to a power machine having a hydraulic system providing hydraulic fluid under pressure, and having an operator input device receiving an operator input and providing an output signal indicative of the operator input, the attachment comprising: a support structure; a tool mounted to the support structure; a first hydraulic actuator, coupled to the tool to drive the tool and connectable to the hydraulic system of the power machine; and a controller, mounted to the support structure, operably coupled to the first hydraulic actuator, and operably coupleable to the operator input device when the attachment is attached in the power machine, to control operation of the tool based on the operator input.
Claim 2
Dependent Claim
114 words
An attachment attachable to a power machine having a hydraulic system providing hydraulic fluid under pressure, and having an operator input device receiving an operator input and providing an output signal indicative of the operator input, the attachment comprising: a support structure; a tool mounted to the support structure; a first hydraulic actuator, coupled to the tool to drive the tool and connectable to the hydraulic system of the power machine; and a controller, mounted to the support structure, operably coupled to the first hydraulic actuator, and operably coupleable to the operator input device when the attachment is attached in the power machine, to control operation of the tool based on the operator input.
Claim 3
Dependent Claim
59 words
The attachment of claim 1 wherein one of the power machine and the attachment include a valve coupled between the hydraulic system of the power machine and the actuator to control flow of the hydraulic fluid to the actuator and wherein the controller is operably coupled to the actuator by being coupled to the valve to control the valve.
Claim 4
Dependent Claim
13 words
The attachment of claim 2 wherein the valve is mounted on the attachment.
Claim 5
Dependent Claim
28 words
The attachment of claim 3 wherein the tool comprises a plurality of spades, one of the spades being a pivotal spade pivotally mounted relative to an adjacent spade.
Claim 6
Dependent Claim
25 words
The attachment of claim 4 and further comprising a plurality of hydraulic actuators, one hydraulic actuator being coupled to each of the plurality of spades.
Claim 7
Dependent Claim
73 words
The attachment of claim 5 and further comprising: a plurality of valves one of the plurality of valves being coupled between the hydraulic system of the power machine and each of the plurality of hydraulic actuators to control flow of the hydraulic fluid to the actuators and wherein the controller is operably coupled to each of the plurality of hydraulic actuators by being coupled to the plurality of valves to control the valves.
Claim 8
Dependent Claim
26 words
The attachment of claim 5 and further comprising: a gate actuator, coupled to the pivotal spade to pivot the pivotal spade relative to the adjacent spade.
Claim 9
Dependent Claim
56 words
The attachment of claim 7 and further comprising: a gate valve coupled between the hydraulic system of the power machine and the gate actuator to control flow of the hydraulic fluid to the gate actuator and wherein the controller is operably coupled to the gate actuator by being coupled to the valve to control the valve.
Claim 10
Dependent Claim
62 words
An attachment for a power machine, the power machine having a power circuit, the attachment comprising: a tool; a first power actuator coupled to the tool to drive the tool, and couplable to the power circuit to receive power from the power circuit; and a controller, mounted on the attachment and operably coupled to the power actuator to control the power actuator.
Claim 11
Dependent Claim
62 words
An attachment for a power machine, the power machine having a power circuit, the attachment comprising: a tool; a first power actuator coupled to the tool to drive the tool, and couplable to the power circuit to receive power from the power circuit; and a controller, mounted on the attachment and operably coupled to the power actuator to control the power actuator.
Claim 12
Dependent Claim
59 words
The attachment of claim 9 wherein the power machine includes an operator input device for receiving an operator input and providing an operator input signal based on the operator input, and wherein the controller is operably couplable to the operator input device to receive the operator input signal, the controller controlling the tool based on the operator input signal.
Claim 13
Dependent Claim
29 words
The attachment of claim 10 wherein the controller provides a control signal to the power machine to control at least a portion of the operation of the power machine.
Claim 14
Dependent Claim
20 words
The attachment of claim 11 wherein the control signal controls a portion of the power circuit in the power machine.
Claim 15
Dependent Claim
31 words
The attachment of claim 12 wherein the power circuit comprises a hydraulic power system and wherein the control signal controls flow of hydraulic fluid through a portion of the hydraulic system.
Claim 16
Dependent Claim
36 words
The attachment of claim 10 wherein the power machine includes at least one of an on/off controller and a proportional controller and wherein the controller on the attachment includes means for communication with the proportional controller.
Claim 17
Dependent Claim
22 words
The attachment of claim 14 wherein the one of the on/off and proportional controllers controls flow of hydraulic fluid to the attachment.
Claim 18
Dependent Claim
13 words
The attachment of claim 9 wherein the controller comprises: a microprocessor-based electronic controller.
Claim 19
Dependent Claim
116 words
A power machine, comprising: a power system; a plurality of machine power actuators coupled to the power system; a first controller receiving a plurality of inputs and controlling at least one function of the power machine based on the inputs; an operator input device providing an input signal in response to operator inputs; and an attachment coupled to the power machine, the attachment comprising: a tool; an attachment power actuator connected to the power system and to the tool; and a second controller mounted on the attachment, operably coupled to the operator input device to receive the input signal, and operably coupled to the power actuator to control the power actuator based on the input signal.
Claim 20
Dependent Claim
116 words
A power machine, comprising: a power system; a plurality of machine power actuators coupled to the power system; a first controller receiving a plurality of inputs and controlling at least one function of the power machine based on the inputs; an operator input device providing an input signal in response to operator inputs; and an attachment coupled to the power machine, the attachment comprising: a tool; an attachment power actuator connected to the power system and to the tool; and a second controller mounted on the attachment, operably coupled to the operator input device to receive the input signal, and operably coupled to the power actuator to control the power actuator based on the input signal.
Claim 21
Dependent Claim
19 words
The power machine of claim 17 wherein the first and second controllers are coupled to communicate with one another.
Claim 22
Dependent Claim
35 words
The power machine of claim 17 wherein the first controller controls a portion of the power system and wherein the second controller provides a control signal controlling at least one function on the power machine.
Claim 23
Dependent Claim
22 words
The power machine of claim 19 wherein the control signal provided by the second controller controls a portion of the power system.
Claim 24
Dependent Claim
38 words
The power machine of claim 18 wherein the first controller is configured to receive parameter signals from the second controller indicative of operating parameters at the attachment, and to control the power machine based on the parameter signals.
References Cited (Backward Citations)
US3936960A
Cited
US4199033A
Cited
US4222186A
Cited
US4403427A
Cited
US4620362A
Cited
US4964779A
Cited
US4850766A
Cited
US4934463A
Cited
US4957408A
Cited
US5065326A
Cited
US5081941A
Cited
US5398766A
Cited
US5257177A
Cited
US5188502A
Cited
US5249140A
Cited
US5347448A
Cited
US5425431A
Cited
US5459952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-02-02 | 2001-08-04 | 2002-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-02 | 2005-08-04 | 2006-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-02 | 2009-08-04 | 2010-02-03 | $7700.00 | Window Closed / Lapsed |